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The Extended Range and Trimix Diving manual covers topics for the Extended Range, Trimix, Helitrox (OC/CCR) and mixed gas programs. While some courses will require other materials, this program sets the foundation for diving with helium in the TDI curriculum. This item features the standard materials needed for a student to take the relevant courses online. This item Includes:

Special Note - Only divers and members residing in our service areas
have the ability to purchase materials with the ITI Online Catalog. If you are outside our service areas
and interested in purchasing any of the materials you see here, simply contact your local regional office by clicking here.